Recording medium playing apparatus with program discontinuity response

Abstract

A recording medium playing apparatus comprises a reading device for reading, from an information recording medium on which a sub-program signal carrying a musical instrument play control signal is written in order together with a main program signal, the main program signal and the sub-program signal simultaneously according to an order of writing, a musical instrument play control signal decoding device for decoding a musical instrument play control signal from the sub-program signal and supplying the musical instrument play control signal to electronic musical instruments, and a control device for controlling the operation of the reading device in response to an operational command. The control device is adapted to command the musical instrument play control signal decoding device to transmit a sound generation stop command signal when the content of the operational command is to cause the reading device to perform a reading operation in which the order of reading is different from the order of writing.

What is claimed is: 
     
       1. A recording medium playing apparatus comprising: means for reading, from an information recording medium main program signals and sub-program signals, carrying musical instrument play control signals in a reading order normally identical with an order of writing of said main program and sub-program signals;   musical instrument play control signal decoding means for decoding a musical instrument play control signal from said sub-program signals and for supplying said musical instrument play control signals to electronic musical instruments; and   control means for controlling operation of said reading means in response to an operational command, said control means having means for commanding said musical instrument play control signal decoding means to transmit a sound generation stop command signal when said operational command is to command said reading means to perform a reading operation which order is different in order from said order of writing.   
     
     
       2. An apparatus as claimed in claim 1, wherein said control means has means for executing said operational command after completion of a decoding operation by said musical instrument play control signal decoding means when said operational command is to command said reading means to perform a reading operation which is different in order from said order of writing. 
     
     
       3. An apparatus as claimed in claim 1, wherein said information recording medium is an information recording disc, and said operational command is a command for at least one of pause, still picture reproduction, search, track jump, and play stop operation. 
     
     
       4. An apparatus as claimed in claim 1 wherein said information recording medium is a magnetic tape, and said operational command is a command for at least one of fast-forward, rewind, pause, and play stop operation. 
     
     
       5. An apparatus as claimed in claim 1 wherein said sound generation stop command signal is one of note-off message, all-note-off message, and initializing message. 
     
     
       6. An apparatus as claimed ian claim 2, wherein said information recording medium is an information recording disc, and said operation command is a command for at least one of pause, still picture reproduction, search, track jump, and play stop operation. 
     
     
       7. An apparatus as claimed in claim 2, wherein said information recording medium is a magnetic tape, and said operational command is a command for at least one of fast-forward, rewind, pause, and play stop operation. 
     
     
       8. An apparatus as claimed in claim 2, wherein said sound generation stop command signal is one of note-off message, all-note-off message, and initializing message.